gcc/testsuite/gfortran.dg/streamio_14.f90

   1 ! { dg-do run }
   2 ! Test that we can write an unformatted stream file without
   3 ! truncating.
   4 program main
   5   character (len=10) c
   6   open(10, form="unformatted", access="stream", position="rewind")
   7   write (10) '1234567890abcde'
   8   c = ''
   9   read (10,pos=1) c
  10   if (c /= '1234567890') call abort
  11   c = ''
  12   read (10,pos=6) c
  13   if (c /= '67890abcde') call abort
  14   write (10,pos=3) 'AB'
  15   c = ''
  16   read (10,pos=1) c
  17   if (c /= '12AB567890') call abort
  18   c = ''
  19   read (10,pos=6) c
  20   if (c /= '67890abcde') call abort
  21   close (10,status="delete")
  22 end program main